[Bug 109366] NULL pointer at pcie_capability_read_dword with Radeon SI vfio passthrough

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109366

            Bug ID: 109366
           Summary: NULL pointer at pcie_capability_read_dword with Radeon
                    SI vfio passthrough
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: ryandbair at gmail.com

Created attachment 143131
  --> https://bugs.freedesktop.org/attachment.cgi?id=143131&action=edit
dmesg output

My guest is seeing the attached bug and call trace during boot. Kernel
4.20.2-200, also an issue on 4.19 series. 4.18 is similar with the older drm_
prefixed version of the function.

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